For successful seedlings,
see the growing notes at the bottom of the page!
Mad-dog skullcap (Scutellaria lateriflora), also called blue skullcap, is a perennial herb native to Quebec that grows in wetlands and riparian areas. It forms upright clumps reaching about 70 centimetres in height and is distinguished by its small violet-blue flowers that line one side of the flowering stems in summer. This delicate bloom attracts many pollinators and brings a light touch to landscapes.
The species favours moist but well-drained soils and locations in full sun to partial shade. Adapted to stream banks, wet meadows, and natural ditches, mad-dog skullcap integrates well into naturalised gardens and ecological restoration projects in wetland habitats.
Sociability index: 2 → Indicates the plant’s behaviour in space and its interactions with other plants.
Medicinal and culinary uses
Mad-dog skullcap is best known for its medicinal properties. The dried aerial parts are used as a mild sedative and a natural nervous system relaxant. They are prepared in infusions and tinctures to ease anxiety, promote sleep, and reduce muscle spasms. The plant is also known for its antispasmodic and mildly analgesic effects.
Ecological roles
Mad-dog skullcap plays an important role in Quebec’s wetland ecosystems. Its flowers provide nectar and pollen for several species of bees, bumblebees, and hoverflies. Its presence supports floral biodiversity and helps stabilise stream banks through its fibrous root system. By forming dense colonies, it helps maintain soil moisture and prevents erosion in riparian habitats.
Mad-dog skullcap seeds require cold stratification to ensure germination. See the cultivation notes below for more details.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 75
Family: Lamiaceae
Scientific name: Scutellaria lateriflora
Life cycle: Perennial
Hardiness zone: 3
Soil type: All types
Soil moisture level: Humid
Soil - additional attributes: Well-drained.
Drought tolerance: Low
Light: Sun, part shade
Blooming: July to August
Spacing: 30 cm
Height: 70 cm
Deer resistance: High
Stratification: 60 days
Scarification: No
Germination time: 14 to 21 days
Sowing depth: Surface
Reproductive system: Hermaphrodite